Interannual analysis of estuarine fish assemblages after impact in the south coast of Brazil

Authors

  • Maíra Gnoatto Afonso Doutoranda (bolsista da Capes), Programa de Pós-Graduação em Sistemas Costeiros e Oceânicos, Universidade Federal do Paraná, Centro de Estudos do Mar, Brasil.
  • Paulo Ricardo Schwingel Professor da Universidade do Vale do Itajaí, Escola do Mar, Ciência e Tecnologia, Itajaí, SC, Brasil.
  • Johnatas Adelir-Alves 3 Pesquisador, Laboratório de Ecologia de Peixes, Universidade Federal do Paraná, Centro de Estudos do Mar, Pontal do Paraná, PR, Brasil. https://orcid.org/0000-0002-8882-4009
  • Henry Louis Spach Laboratório de Ecologia de Peixes. Universidade Federal do Paraná, Centro de Estudos do Mar, Avenida Beira Mar, s/n, Pontal do Sul, CEP 83255-976, Pontal do Paraná, PR, Brasil. https://orcid.org/0000-0002-4100-2868

DOI:

https://doi.org/10.32360/acmar.v55i2.60505

Abstract

Transitional water ecosystems suffer from the destruction and loss of biodiversity. Fish assemblages were described in taxonomic and functional metrics and temporal variations were investigated over time, during and after an intervention in the cove of Saco dos Limões, south coast of Brazil. Sampling was performed using bottom trawling. In the temporal analysis of the ichthyofauna, we used multidimensional ordering and similarity analysis were used, based on the presence and absence of species, families and abundance of species and guilds. Were identified 78 species and 33 families. The most abundant species was Genidens genidens (25.9%) and Sciaenidae, with 16.7% of the total identified species, was the family with the highest richness (13 spp). Visiting marine species was the most representative guild in the estuary (44.1%) and zoobentivores was the food guild with the largest number of species (61.5%). Taxonomic metrics showed interannual changes in the fish assemblages, which may be related to the dredging and landfill activities for the construction of the highway on the shore of the Saco dos Limões cove. Taxonomic and functional
metrics can be used efficiently in environmental monitoring work.
Keywords: ichthyology, transitional waters, guilds, taxonomic diversity, functional diversity.

Author Biography

Maíra Gnoatto Afonso, Doutoranda (bolsista da Capes), Programa de Pós-Graduação em Sistemas Costeiros e Oceânicos, Universidade Federal do Paraná, Centro de Estudos do Mar, Brasil.

 

 

 

Published

2023-02-07